Changing Line Spacing

Hi, I use Clean Journal Pro and tried changing the line spacing for the main body of text by adding the following to "themes">"customize">"additional css": body, button, input, select, textarea { line-height: 1.9; } That, however, did not make any changes. Can you advise if I am doing something wrong? For your information, I have gone into "customize">"theme options">"font family options" and changed all the fields to: "droid sans sans-serif" Could this be the reason why I can't change the line height? Thank you.